# Solarize > Solarize is a German energy software company offering a meter-to-cash billing platform (software-as-a-service) for utilities, municipal utilities (Stadtwerke), and energy providers. It converts metering data into a revenue stream via automated billing, metering-data management, monitoring/reporting, and flexible electricity-product configuration. The REST API is served at https://api.solarize.energy/v1 (JSON over HTTPS, JWT bearer auth, offset/limit pagination, 600 requests/minute). ## APIs - [Solarize API docs](https://api-docs.solarize.energy/): REST API reference and guides. - [API Reference](https://api-docs.solarize.energy/api-reference): full endpoint and schema reference. - Base URL: https://api.solarize.energy/v1 ## Conventions - [Authentication](https://api-docs.solarize.energy/authentication): exchange an app-generated API Token at POST /v1/oauth for a short-lived JWT; send `Authorization: Bearer `. - [Pagination](https://api-docs.solarize.energy/pagination): `limit` and `offset` query params; responses return `{ data: [...], total: N }`. - [Rate Limits](https://api-docs.solarize.energy/rate-limits): 600 calls per minute (rolling 1-minute window). - [API Compatibility](https://api-docs.solarize.energy/api-compatibility): unversioned API; breaking changes emailed to API key holders 4 weeks in advance with a migration guide. - [Custom Attributes](https://api-docs.solarize.energy/custom-attributes): user-defined fields on Site, Customer, Meter, Contract, and Price Component. - [Outgoing Webhooks](https://api-docs.solarize.energy/outgoing-webhooks): entity CRUD and bill-run lifecycle events delivered to a configured endpoint. ## Use cases - [Customer Onboarding](https://api-docs.solarize.energy/customer-onboarding) - [Metered in, Balanced out](https://api-docs.solarize.energy/metered-in-balanced-out) - [Submit Measurements](https://api-docs.solarize.energy/submit-measurements) - [Create Virtual Meters](https://api-docs.solarize.energy/create-virtual-meters) - [Billing](https://api-docs.solarize.energy/billing) ## Resources - [Website](https://www.solarize.de/en/solution) - [Blog](https://www.solarize.de/blog?hsLang=en) - [Contact / Support](https://www.solarize.de/en/contact?hsLang=en) - [Status](https://solarize.statuspage.io) - [App login](https://app.solarize.energy) ## Enrichment artifacts (API Evangelist) - authentication/solarize-authentication.yml - conventions/solarize-conventions.yml - rate-limits/solarize-rate-limits.yml - lifecycle/solarize-lifecycle.yml - asyncapi/solarize-webhooks-asyncapi.yml - data-model/solarize-data-model.yml - conformance/solarize-conformance.yml - security/solarize-domain-security.yml - mcp/solarize-mcp.yml